Creating a matrix from one column

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Piotr
Piotr il 23 Set 2022
Commentato: Piotr il 26 Set 2022
Hello,
I have data in one column which has a few thousand rows, from which I would like to create a matrix with the same data in each column, and with the number of columns the same as the number of rows. Later on, I would like to extract it as a csv file. I feel it could be fairly easily to be done but couldn't succeed yet. Thanks in advance for any comments

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Davide Masiello
Davide Masiello il 23 Set 2022
A = rand(1,1000)'
A = 1000×1
0.3433 0.2117 0.2324 0.9507 0.6145 0.0998 0.8159 0.1063 0.1736 0.4148
M = repmat(A,[1 length(A)])
M = 1000×1000
0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.3433 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2117 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.2324 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.9507 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.6145 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.0998 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.8159 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1063 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.1736 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148 0.4148
writematrix(M,'yourfile.csv')

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